Concrete-insert.



W. A. VON WGLFFRADT.-

'CONCRETE INSERT. APPLICATION FILED OCT. I3. 1913;

1,192,804.. PatentedJu1y25,1916.

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WHILIAM A. von WoLrrnAnT, or

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'i coNcnETn-INSET. 'j

Specification of Letters Patent.

Patented July 25,1916.

Application led october 13, 1913. .y Serial No. 7S4,812'.

' To all w'hom t may concern.'

Be yit known that I, WILLIAM A. VON `i/Vonrrimpr, of Cleveland, in the county of Cuyahoga and State of Ohio, 'have invented new and useful Improvements in Concrete-l Inserts, of which the following is a specii cation. Y

This invention relates to means for y-sus-y taining or anchoringmaterial things or de-v vices tostructures of concrete, cement, or any other unyielding substance to which it is adaptable.l v j The primary object of my present invention is t `produce an insert for ayceiling,

wall, beam, post or iioor adapted to firmly hold a' sustaining or anchoring bolt, and provide for universal adpistment of said holt to any position 'Within the limits of the'- uGVlCe.

Further objects are to provide convenient means for inserting or removing the said anchor-bolt, to economize space,`to provide for cleaning the interior of the insert' or for renewing the'k supporting plates so ,that a preferably of to the larger end of the shell a., being pro?- vided-With -a peripheral flange f, or any.,l

different sized bolt may be used, and to bring forth a devi-ce which can be easily set in' concrete, but present nounsightly appearance.

r Referring now to the accompanying drawings illustrating .preferable embodiments of my invention .Figure of the. insert set in a -ceiling,.vbea1n, Fig. 2 is a'plan view of the insert with the cover partly broken away. Fig. 3 is a section taken on line 3-3 ofFig. 2.

Thereference letter c indicates a shell of steel,.or other suitable metal, preferably, though., not necessarily, annular, as shown, and having a larger 'diameter at one end than at the other',l of a frustum of a cone, and provided with an interior iange l), about a circular aperture at its smaller end. A suitable cover c, shdi-l iron or steel, is fitted other suitable means for keeping in place. Ihus the'said shell and its cover 1s adapted,

5.0' .to be embedded in concrete Fig., 1, with itsl material d, ,as shown' 1n with 'the- Ist irface of the angedend t flush.y l structure; it'being only necessary v smaller end upon, or temporarily securejit carried up,

kinforcing A pair of semi-circular supporting, or an- 1 is a sectional View, lpartly 1n side elevation',

or rother mass of concrete.

` p'osition,as shown "in Fig.

. pressions loosely fitting the head i of the bolt y'. A5 hereinbefore stated, the shell a of the like the curved surface .the said structure. Then,

or other plastic to layjits" to' the inside of the form, or mold, in which -the plastic material'is poured.

Thelargerend of the conical shell a being sunk inthe structure of la ceiling,

, A beam, wall, post o1 fle or, it is obvious that, upon the hardening' `of the plastic 'mass ,of the' structure, he'ysaid shellv is firmly 'held and anchored t er'ein by its flaring shape. But

when additional anchorage'is desired, I pro- -vide small apertures 0,- as many as may be required, infand near thelarger end of the shell a, through which wires c are inserted,

or' into the structure,` and secured to any lconvenient and suitable supports, y 'such, for example, 'as the concrete rebars g shown in Fig. 1.

choring plates p and 10', strong metal,

of steel or other are made respectively right and lefthanded, adapted to abut together -alongtheirA straight diametrical edges, and rabbeted out on the exterior sides of their peripheries, asfshown at h, to fit loosely over and rest upon the Hange b of the em-v beddedv shell. The opposing diar'netri-cal edges'of the plates p andl p are respectively notched. or partly cut away, as shown at yn and n', so as to form when in, place a slot,

in whichl the shank` of a' boltj may slide radially of thevdevlice to 'or from'a fr ytra-l 2. Ribs Z and Z rise respectively from the of the 1 plates p,

c and p', and bordering .de-l pressions k and l 7c in said plates, which deforrn an` elongated countersink insert with its cover c is firmly fixed' in the hardened concrete structure, being set there- 11n when the plastic concrete, or analogous y a ait-ea a; peni tions sjuch as those shown in the dottedv lines 'of Fig. 3, rinwhich,positi'onsyit is obvious.

that the'headzl of the anchor-bolt jmay; be

eadilyslipped info the "shell between fthe said-plates, passing through theaslgtnotcviies and vrt. pilates y and ggare then interior surfaces and the lcireurialnoinprising :and a tatably adjustable bronghtto their normal positions the flange I; `of `the shell, the conntersnnk portions /r and /.4 slipping under the head of the bolt j. The bolt may be removed at any time by tilting the said plates,` and `new plates tor another size of' bolt inserted, but in their normal positions the latter form a firm anchorage t'or the bolt.

It being bolt in concrete with cxtreme accuracy of position. my insert shell f1 is adapted for roughly approximate positions, since the bolt may slide radiallygto any position, and may be turned or swung, carrying' the plates p52/ with it. throughout the circle ot the shell rf, limitedonly `ythe length of the `slot :1*21. For example,see dottedlines in Fig. 2. This provides aiiiniversal adjnstment` yet, when the bolt is tightened upon the device to be secured, the latter is anL chored firmly in place.

1I further point out and distinctly claim as my inrentionz- 1. An insert for plastic hardening matean annular; shell having a larger diameter at one end than at the other, a cover for the larger end of said shell. and means supportable within said shell whereby an anchorholt'may be secured to andV adjusted in parallel axial alinement to positions in more than one line across the' smaller end of said shelh .v

il. An insert for plastic hardening mate rial comprising a. hollow flaring sliel'l'rovered at its larger end, a circular aperture at the smaller end of-said shell. and means in- .sertible through said aperture whereby an anchor-bolt may engage. said shell and be adjusted in parallel axialalinement to any position within the limits of saidaperture.

3. An insert for plastic hardening mate rial comprising :in annnlar conical shell provided with a4 cover for its larger end. and a pair of semi-circnlar plates supportable upon and within the smaller end ot said shell and adapted to receive and hold an anchor-bolt therebetween. y 4. An insert lor plastic hardening mate rial comprising an annular conical shell provided Vwith a cover for its larger end and having an internal flange at its smaller end,

pair of semi-circular anchor-plates ro- V and supportable, within the smaller end ot'v said shell against said flange and adapted to receive and hold a bolt between them 5. An insert torplastic hardening material comprising an annular conical `shell internally flanged 4at its smaller end. a cover `for the larger semi-circular plates rotatable against its flange-and opposable atitheir dia'metrical edges. and formed in the opposable adapted to receive in said .shell to each other a radial slot edges of said plates and hold ana.inl|orl 1o|t.`

against impracticable to set an ancl1orrotatable `inside edges tions formed end of said shell. a pairof G. An insert/.for plastic hardening material comprisingan annular flaring shell in vternally flanged at` its smaller end and closed at its larger end, a pair of semi-circular plates rotatable in said shell against its flange and opposable to each other at their diametrical edges, and a radial slot formed in the opposable edges of said plates adapted to permit the through when said plates are tilted within the shell and to slidingly engage said bolthead when said plates are in normal position against the flange of said shell.

7. An insert for plastic hardening material comprising an annular flailing shell internally flanged at its smaller end and closed at its larger end, a. pair of semi-circular plates rotatable in said shell against its ange and opposable to each other at their diametri al edges, a radial bolt-slot formed in the opposable edges ot said plates, and a socket for a bolt-head countersnnk in lsaid plates with its sides parallel to the sides of Vsaid slot.

smaller end, an internal flange at the smaller end of said shell, a pair otl removable anchor-plates supportable upon the interior ot said flange, and a slot formed in said'anohorplates arranged to receive the shank of a bolt so that said plates may close in under the head of said bolt.

9. In a bolt-anchoring insert, a hollow closed shell adapted to be embedded and snpported in structural material with one of its l'aces exposed, a circular aperture in the exposed face ot' said shell. a pair of removable semi-rircnlar plates in said shell opposable to each other at their diamctrical edges and in said aperture. lsaid plates having peripheral flanges adapted to overlap the of said aperture. and indentain the opposable edges of said plates whereby an ,anchor-bolt may be received and supported between them.

l0...\n anchor embodying a body member provided with a chamber therein. a pair of removable semi-circular plates mounted `for rotation in said chamber. said pair of plates beingr formed with a transverse slot with which `a connecting medium may engage at any point intermediate the ends thereof, suhstantially as dcscrilafd.

11. An anchor embodying a. body member provided with a chamber therein. a rotatable dish member within the chamber formed with a trimsvcrse Islot. with which a connect ing medium may engage at any point intermediale the ends thereof. .substantially as descrihed. y

IL. .ln anchor embodying a body member provided with a chamber therein, a rotatable disk member within the chamber formed passage of a bolt-head thereiso e l .y 1,192,804

withA- a'transverse slot theein, the underI Side A of said disk member being reinforcedby walls disposed parallel Vtosaid slot. and on either side al slight distance lfrom the edges thereof to Aconstitute, in' eeot' an undercut slot', theV said slot and, walls operating to allow movement of a bolt vand bolthead therein in a longitudinal direction only, Sub-` '.'stantiallyas'described f In testimony whereofl ailix-:mySignaturek Ln ROY f L. G. Herpen. 

